question_answer

A square with a side of \[xm\] is inside a square with a side of \[4\text{ }m,\]as shown in the figure. Which expression represents the area of the shaded region in terms of x?

A)  \[(16+{{x}^{2}}){{m}^{2}}\]                

B)                   \[(16-{{x}^{2}}){{m}^{2}}\]      

C)                   \[(16-2x){{m}^{2}}\]         

D)                   \[(16-4x){{m}^{2}}\]